发明授权
US4990824A Color cathode ray tube having interference filter with different pass bands 失效
具有不同通带的干涉滤光片的彩色阴极射线管

Color cathode ray tube having interference filter with different pass
bands
摘要:
A color cathode ray tube of the shadow mask or beam index type in which the screen structure applied to the faceplate has a plurality of triplets of optical interference filter stripes which are adapted to pass red (R), green (G) and blue (B) light produced by a homogeneous cathodoluminescent screen layer. The usual aluminium layer may be applied to the screen layer. The optical interference filter stripes may have short wave pass filters, band pass filters or a combination of both types. The short wave pass filter stripes may have modified quarter wavelength multilayer dielectric filters and the bandpass filter may have a Fabry-Perot filter.
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